I am trying to understand the use of concepts in c++. I have written the simplest possible concept as follows.
template<typename T> concept A = true;I'm writing my code in Visual Studio 2022 with the language standard set to: Preview - Features from the Latest C++ Working Draft (/std:c++latest).
warning STL4038: The contents of <concepts> are available only with C++20 concepts support.Severity Code Description Project File Line Suppression StateError C2061 syntax error: identifier 'A' Chapter21 C:\Users\justi\source\repos\Chapter21\templates.h 4 Error (active) E0020 identifier "concept" is undefined Chapter21 C:\Users\justi\source\repos\Chapter21\templates.h 4